%0 Journal Article
%T Spatial Variation of Degree-day Factors on the Observed Glaciers in Western China<br>中国西部冰川度日因子的空间变化特征
%A ZHANG Yong
%A LIU Shiyin
%A DING Yongjian
%A <br>张勇
%A 刘时银
%A 丁永建
%J 地理学报
%D 2006
%I 
%X Degree-day factor is an important parameter of degree-day model which is a widely used method for ice and snow melt computation. Spatial variations of a degree-day factor have great impacts on the accuracy of snow or ice melt modeling. This paper analyzes the spatial variability characteristics of the degree-day factors obtained from the observed glaciers of different regions in western China. Results clearly show that the regional patterns of the degree-day factors are detectable on the observed glaciers of western China due to the unique climatic environment and heat budget of the Tibetan Plateau and the surrounding areas; the factors of maritime glaciers are higher than those of the sub-continental and extremely continental glaciers because of the ablation area covered with a thin debris layer in the maritime glacier; for a single glacier, the degree-day factors are subject to significant small-scale variations. In general, the regional patterns of the degree-day factors are detectable on observed glaciers due to the unique climatic environment and heat budget of the Tibetan Plateau and the surrounding areas. Low degree-day factors can be expected for cold-dry areas, whereas, high degree-day factors can be expected for warm-wet areas in western China.
%K glacier
%K melt
%K degree-day factor
%K western China<br>冰川
%K 消融
%K 度日因子
%K 中国西部
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=869B153A4C6B5B85&jid=F7B5B947C24B9D649491012214E4BEF4&aid=1586DCEF20BE5EC1&yid=37904DC365DD7266&vid=1D0FA33DA02ABACD&iid=CA4FD0336C81A37A&sid=CFAC5CB624A41AFD&eid=10F298ED9F164662&journal_id=0375-5444&journal_name=地理学报&referenced_num=9&reference_num=74